Filling-detecting mechanism for looms.



No. 834,585. g PATENTED OCT. 30, 1906.

M. MAROOUX. 4 PILLING.DBTBOTING MECHANISM FOR LOOMS.

APPLICATION FILED 00,128, 1906.

UNITED STATES PATENT OFFICE.

ALIDA M. MARCOUX. OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORA- TION'OF MAINE.

FILLING-:DETECTING MECHANISM FOR LOOMS.

- of Hopedale, county of Worcester, State of Massachusetts, have invented an Improve- -ment in Filling-Detecting Mechanism for Looms, of which the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawings representing like parts.

This invention relates more particularly to the mechanism in a 100m for detecting the presence or absence of the filling as laid by the running shuttle, the detection of filling absence acting automatically to effect a change in the operation of the loom. Y

My-invention has for its particular object the production of novel and simple means for controlling the filling detector or fork, reducing improper vibratory movement thereof to a minimum, and insuring the cooperation of the detector and vibrator or Weft-hammer under certain conditions.

I have shown one practical embodiment of my invention in connection with a doubledetector loom, as itis particularly adapted for such use; but I do not thereby restrict its application to such type of loom, as it can a so be readily employed in single-detector looms. J

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in t e following claims.

Figure 1 is a top plan view, centrally broken out, of a portlon of a double-detector automatic filling-replenishing loom with one embodiment of my lnvention applied thereto. Fig. 2 is a'right-hand side. elevation of one of the detecting deivces with the nearer side of the fork-slide broken out, the fork being shown in osition to detect. Fig. 3 is a similar view, but after detection has been effected and the vibrator has moved forward. Fig. 4 is a like view showing the left-hand one of the detectors, Fig. 1, after an initial movementhas' been given to its slide, as will be explained and Fig. 5 is a longitudinal sectional view of the hook which is mounted on the vibrator with the fork-controller in elevation.

Referring to Fig.1, I have shown a portion of automatic filling-replenishing mech- Specification of Letters Patent.

Application filed October 28 1905. Serial No. 284.811.

. Patented oct. 30, 1906.

anism, including a feeder F to hold a supply of filling carriers or bobbins and a transferrer f to transfer the same one by one to the running shuttle in Well-known manner, a rock-shaft d controlling the operation of said mechanism.

Two filling-detecting devices are shown, designed to normally detect on alternate picks, each device comprehending a filling detector or fork, as f g, a slide for each f X g and two vibrators or weft-hammers W W, one for each slide, each vibrator. having a connected hook w, having a shoulder '11) and a rest portion w (see Figs. 2 to 5,) formed by its upper edge between the shoulder and the point of the hook. Each hook is longitudinally slotted, as at 1, the ends of the slot being oppositely inclined or flared, as at 2 3,

and in the slot a fork-controller is fulcrumed at 4-. Said controller is herein shown as an elongated loop-like device 5, adapted to swing in a substantially vertical path in the slot and limited in such movement by the inclined ends 2 3 of the slot. The opening 6 in the controller has an entrance 7, through which the fork-tail is inserted when assembling the arts, the forks f and g, Fig. 1, having tail s f 9 respectively, of usual construction to cooperate with the hook-shoulders upon detection of filling absence. As the hook in my present invention is slotted the shoulder thereof will be divided or two art, one part on each side of the slot, as will he manifest, the controller swinging between them. The opening 6 is wide enough to permit easy sliding movement of the fork-tail therein, and when the fork is in detecting position, Fig. 2, its tail acts to hold the controller in practically upright or neutral position, and at such time the controller offers littlle resistance to tilting movement of the for When the fork is engaged by the filling and is tilted, the tail is lifted, and at the same time the vibrator begins its outward stroke, and thereby the controller is thrown or swung rearward from neutral position and acts upon the fork-tail to depress it onto the rest portion to of the hook, as in Fig. 3. The controller thus not only limits the throw of the fork when tilted by the filling, but

quickly returns'it and maintains it practically quiescent while the vibrator makes the mathe controller dropping down too far.

I have shown the main or left-hand fillingdetecting device in detail in Figs. 2, 3, and 4 to illustrate an additional function of the controller when used on a do uble-detector loom, such as shown in Fig. 1, and which is substantially the structure forming the subject-matter of United States Patent to Northrop, No. 789,291, dated May 9, 1905. In said patent the full outward movement of the main slide f X acts, through the arm (I, to rock the shaft (1 far enough to effect the operation of the filling-replenishing mechanism; but when filling absence is detected by the auxiliary fork g its-slide g acting through arm (1 turns the rock-shaft d a less distance, but far enough to arrest take-up. Such turning of the rock-shaft, however, causes the upper end (1 of arm (1 to act upon and move outward a latch-carrier 17, Fig. 1, mounted on the main slide, and thereby to impart an initial outward movement to the main slide f. This initial movement of the slide withdraws the main fork f from thefilling path, so that the fork will not be tilted even should a trailing end of filling be present, and thereupon the adjacent hook cooperates with the main fork-tail f and the slide is moved outward its full distance, causing filling replenishment. In other words, the replenishing mechanism is directly controlled as to its operation by the main fork and indirectly by the auxiliary fork in the manner described.

When the initial movement of the main slide is effected, the fork-tail acts upon the controller 5 to swing it forward, (see Fig. 4,) and its upper side then acts to depress the forktail and additionally acts to prevent any possible tilting of the fork should any filling end be present. At the same time it maintainsthe fork-tail down in position to be certainly engaged by the hook-shoulder as the main vibrator W moves outward, thus insuring the desired cooperation and conseuent full outward movement of the main side. When so thrown or swung forward, the controller is limited in its movement by the front end 2 of the slot in the hook. This form of fork-controller is very simple. It is accurate in operation and cannot get out of osition with relation to the fork-tail, the atter sliding freely in the controller-opening 6, as will be manifest.

My lnvention is not restricted to the precise construction and arrangement herein shown and described, as the same may be modified or varied in different particulars by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In filling-detecting mechanism for looms, in combination, a fillin fork to engage and be moved by intact fillin a vibrator having a hook to cooperate with the fork upon detection of filling absence, and a forkcontroller movably mounted on the hook.

2. In filling-detecting mechanism for looms, in combination, a filling-fork to engage and be moved by intact fillin a vibrator having a hook to cooperate with the fork upon detection of filling absence, and a forkcontroller fulcrumed on the hook and ada )ted to limit vibratory movement of the fork 3. In fillin detecting mechanism for looms, in com ination, a fillin -fork to engage and be moved by intact fil ing, a vibrator having a hook to cooperate with the fork u on detection of filling absence, and a loopli e controller pivotally mounted on the hook and cooperating with the tail of the fork to limit vibratory movement thereof.

4. In fillin -detecting mechanism for looms, in combination, a fillin fork to engage and be moved by intact fil ing, and provided with a tail, a vibrator having a shouldered hook to en age the fork-tail upon detection of filling a sence, said hook having a rest portion beyond its shoulder, and a forkcontroller movably mounted on the hook and cooperating with the fork-tail, to depress the latter onto the rest portion and maintain it substantially quiescent thereon after fillinginduced movement of the fork, during the major portion of the vibrator movement.

5. In fillin detecting mechanism for looms, in com ination, a fillin fork to engage and be moved by intact filling, and provided with a tail, a vibrator having a shouldered hook to engage the fork-tail upon detection of filling absence, said hook having a rest portion beyond its shoulder, and an elo ngated, loop-like controller cooperating with the fork-tail and pivoted on the hook, to deress the fork-tail onto the rest )ortion of the 00k immediately after fifling-induced movement of the fork.

6. In filling-detecting mechanism for looms, in combination, a fillin -fork to engage and be moved by intact filing, and provided with a tail, a vibrator having a shouldered hook to engage the fork-tail upon detection of fillin absence, and an elon ated, loop-like contro ler pivoted on the 1100 i and through which the fork-tail loosely passes, said controller being caused to swing rearwardly and depress the fork-tail upon outward movement of the vibrator after the presence of filling has been detected, return movement of the vibrator acting to swing the controller forward and relieve the forktail of pressure.

7. In a loom, in combination, two fillingw detectors normally adapted to'detect filling absence on alternate picks, their slides, a vibrator and its hook to cooperate with each detector upon filling absence, to effect outward movement of its slide, filling-replenishing mechanism the operation whereof is directly controlled by such movement of one of the slides, means to effect an initial movement of said slide upon detection of filling absence by the other detector, and a. controller movably mounted on the hook of the vibrator adjacent the initially-moved slide, to act upon the corres onding detector and prevent filling-induce movement thereof and also maintain the detector in position to cooperate with the hook.

8. In a loom, in combination, main and auxiliary tilting filling-forks each having a tail, slides on which the forks are mounted, a vibrator and its hook for each fork, fillingreplenishing mechanism directly controlled as to its operation by the main fork upon detection of filling absence thereby, means operative by or through detecting action of the auxiliary fork to effect an initial outward movement of the main fork-slide, moving the main fork away from the filling path, and a fork-controller pivotally mounted on the main fork vibrator-hook, to act upon, the

tor having a hook to cooperate with the fork upon detection of filling absence, and a fork controller movable with and also relatively" to the hook and in sliding engagement with p the fork-tail, to govern the vibratory movement of the fork. I h In testimony whereof I have signed my name to this specification in the presenceof two subscribing witnesses.

ALIDA M. MARCOUX.

Witnesses:

GEORGE OTIS DRAPER. ERNEST W. WOOD. 

